Seats & Parkings are -by nature- products with a limited stock. Each Seat and Parking can only be sold once per Calendar Item. But -in some cases- also Catalog Products have a limited stock available. E.g. visibility items (like LED boarding, fixed boarding, 3D carpets) but also other other items like matchday sponsorship, or even certain merchandising products. If stock is limited you want to make sure you don't oversell these Products. This requires a mechanism of Stock Management

2 types of stock can be configured for a Catalog Product:

Most sports clubs will try to secure different sponsorship deals before the start of the new season. 

Imagine that a sports club allows 4 x 3D carpets to be laid out in the stadium: one at each side of each goal.

As these 3D Carpets have to be manufactured specifically for a sponsor, this is a typical example of a visibility product that can only be contracted for the entire season 

The stock of the 3D carpets in the iXpole system will be configured to be 4 at the level of the Season.

By doing so, the management of the club can rest assured that -although different sales people are selling visibility products- they will not be able to exceed 4 units in their sales for a certain Season

Other Catalog Products can be put up for Sale per Calendar Item (game or event). In that case you will want  to configure the maximum stock for this Product per Calendar Item.

Interesting examples of this could be: 

For this kind of Products, it is possible to configure a maximum stock per Calendar Item

Do note that hybrid scenario's can also appear. Imagine there are 90 slots of 6 x 10 sec min LED boarding available. At the beginning of the season you can configure your maximum stock to 90. If only 75 slots are sold at the beginning of the new season, the remaining 15 slots can be configured to be available per Calendar Item.